Home / 18,816.48-28,207.44-9,580.32

Finding the Fourth Proportional to 18,816.48, 28,207.44 and 9,580.32

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Solution

The fourth proportional to 18,816.48, 28,207.44 and 9,580.32 is: 14,361.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.48 : 28,207.44 = 9,580.32 : x
  2. Step 2: Convert to fraction form
    18,816.48/28,207.44 = 9,580.32/x
  3. Step 3: Cross multiply
    18,816.48x = 28,207.44 × 9,580.32
  4. Step 4: Simplify right side
    18,816.48x = 270,236,301.58
  5. Step 5: Solve for x
    x = 270,236,301.58/18,816.48
  6. Step 6: Final answer
    x = 14,361.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.